A jewelry store was robbed and the sack containing the jewels was found a few miles from town in some bushes. The Detective had two suspects but made no attempt to interrogate either of them. Two days later the Detective summoned both the suspects to his office and promptly arrested the one that was guilty.

Without any investigative work, how was the Detective certain of arresting the right person?

Important clue: The jewelry store is in the continent of North America.

9 years old. Older one is 17. A year ago, 16 and younger one was 8 (half the age of the older one). A year from now, they will be 18 and 10. 18 split into two parts (by a horizontal line) looks like 10.

A man was washing windows on a high-rise office building when he slipped and fell off a sixty foot ladder onto the concrete sidewalk below. Incredibly, he did not injure himself in any way. How was this posssible?